In the following report, we will first draw some conclusions of purely theoretical interest, from the general equations of motion. At the end, we will consider the motion of an airplane, with the engine dead and with the assumption that the angle of attack remains constant. Thus we arrive at a simple result, which can be rendered practically utilizable for determining the trajectory of an airplane descending at a constant steering angle. Topics: PROPELLERS - LOADING, ETC, PROPELLERS - DEFLECTION, LOADS - PROPELLERS
NASA Connect Segment involving students in an activity that investigates the strenth and deflection of composite material with and without reinforcement. It reviews vocabulary including polymer, fiber, stress cracks, and maximum deflection. Topics: NASA Connect, Experiment, Students Activity, Strength, Deflection, Composite Material,... Source: http://nasa.ibiblio.org/details.php?videoid=6110&start=40&subject=Science
bySolano, Wanda M.; Torres, Miguel; David, Sunil; Isom, Adam; Cotto, Jose; Sharaiha, Same
This document describes the test-bed designed for the investigation of passive direction finding, recognition, and classification of speech and sound sources using sensor arrays. The test-bed forms the experimental basis of the Intelligent Small-Scale Spatial Direction Finder (ISS-SDF) project, aimed at furthering digital signal processing and intelligent sensor capabilities of sensor array technology in applications such as rocket engine diagnostics, sensor health prognostics, and structural... Topics: CRITICAL LOADING, STABILITY, ELASTIC PROPERTIES, ENERGY METHODS, DEFLECTION, STRUTS
Ultra-Thin Whitetopping (UTW) is a technology to construct 50-100mm thick cement concrete overlay on distressed asphalt pavement as a rehabilitation technique.There have been several UTW projects completed in India,the first in Pune, subsequently in New Delhi, Ghaziabad, Mumbai, and Thane. All projects have shown good to excellent performance so far, indicating that this rehabilitation strategy can stand up to the Indian climate and traffic conditions. The suitability of UTW rehabilitation for... Topics: Deflection, Hot Mix Asphalt, Stress, Ultra- Thin Whitetopping
A distressed pavement requires maintenance. Maintenance measures constitute fresh investment on the existing roads. The maintenance expenditure can be reduced through proper planning, design, construction and quality control. If the causes of possible distresses are removed, or judiciously taken care of during design stage, the expenditure due to maintenance measures on in-service roads reduces. This paper analyzes the method of flexible pavement strengthening by BBD... Topics: Benkelman beam, Corrections, Deflection, Flexible pavements, Inservice Pavements
byChou, J. L.; Stad, N. J.; Barnes, P. R.; Leftheriotis, G. P. N.; Arndt, N. F.; Simonson, S.; Greenleaf, J. E
Spaceflight and bed-rest deconditioning decrease maximal oxygen uptake (aerobic power), strength, endurance capacity, and orthostatic tolerance. In addition to extensive use of muscular exercise conditioning as a countermeasure for the reduction in aerobic power (VO(sub 2max)), stimuli from some form of Gz acceleration conditioning may be necessary to attenuate the orthostatic intolerance component of this deconditioning. Hypothesis: There will be no significant difference in the physiological... Topics: JET VANES, OSCILLATIONS, ROCKET ENGINES, DEFLECTION, TORQUE, LOSSES
Approximate analytic solutions for properties of equilibrium air up to 15,000 K have been programmed for machine computation. Temperature, compressibility, enthalpy, specific heats, and speed of sound are tabulated as constant entropy functions of temperature. The reciprocal of acoustic impedance and its integral with respect to pressure are also given for the purpose of evaluating the Riemann constants for one-dimensional, isentropic flow. Topics: FLIGHT PATHS, DEFLECTION, PITCHING MOMENTS, CONTROL SURFACES, ERRORS, TARGETS
Ultra-Thin Whitetopping (UTW) is a technology to construct 50-100mm thick cement concrete overlay ondistressed asphalt pavement as a rehabilitation technique.There have been several UTW projects completed in India,the first in Pune, subsequently in New Delhi, Ghaziabad,Mumbai, and Thane. All projects have shown good to excellent performance so far, indicating that this rehabilitation strategy can stand up to the Indian climate and traffic conditions. The suitability of UTW rehabilitation for a... Topics: Deflection, Hot Mix Asphalt, Stress, Ultra- Thin Whitetopping
The present work is carried out on modeling and analysis of suspension spring is to replace the existed steel helical spring used in popular two wheeler vehicle. The stress and deflections of the helical spring is going to be reduced by using the new materials. The comparative study is carried out between existed spring and new material spring. Static analysis determines the stress and deflections of the helical compression spring in finite element analysis. The analytical modal is used to test... Topics: Helical Compression Spring, Stress, Deflection, Analysis, Proe-5, Ansys 14
The differences between subcritical liquid drop and supercritical fluid drop behavior are discussed. Under subcritical, evaporative high emission rate conditions, a film layer is present in the inner part of the drop surface which contributes to the unique determination of the boundary conditions; it is this film layer which contributes to the solution's convective-diffusive character. In contrast, under supercritical condition as the boundary conditions contain a degree of arbitrariness due to... Topics: BORON NITRIDES, STACKS, CURVATURE, DEFLECTION, EXPERIMENTATION, CYLINDRICAL BODIES, TEMPERATURE...
In this paper, the architecture of a Multi-planeParallel Deflection-Routed Circular Banyan (PDCB) networkbased switching fabric is introduced. The PDCB network hasa cyclic, regular, self-routing, simple architecture and fairlygood performance. Its Performance is improved due toreduction in blocking by two-dimensional path-multiplicity ofthe proposed architecture. It consists of 4X4 SwitchingElements.The proposed switch is shown to be fault-tolerant. A simpleanalytical model based on Markov... Topics: Fault-tolerant, Banyan, Markov chain, Performance, Deflection-routed, Switch
Electro-Optic Holography (EOH) is a non-intrusive, laser-based, displacement measurement technique capable of static and dynamic displacement measurements. EOH is an optical interference technique in which fringe patterns that represent displacement contour maps are generated. At excessively large displacements the fringe density may be so great that individual fringes are not resolvable using typical EOH techniques. This thesis focuses on the development and implementation of a method for... Topics: ACTUATORS, EXCITATION, EXPERIMENTATION, JET FLOW, DEFLECTION, OPTIMIZATION, TURBULENT JETS
Component errors and die deflection and hence the qualityof the extruded components are directly influence by thegenerated temperature due to friction during the process,the elastic and plastic behavior of the component, diegeometry and billet and die material. Finite elementsimulation is conducted to study the influence of Die LandLength (DLL) and frictional conditions between the die innersurface and billet outer surface, on the component errors anddie deflection during forward extrusion by... Topics: Die Land Length, Friction, FEA, Component‐errors, Die‐deflection
Ultra-Thin Whitetopping (UTW) is a technology to construct 50-100mm thick cement concrete overlay on distressed asphalt pavement as a rehabilitation technique. There have been several UTW projects completed in India, the first in Pune, subsequently in New Delhi, Ghaziabad, Mumbai, and Thane. All projects have shown good to excellent performance so far, indicating that this rehabilitation strategy can stand up to the Indian climate and traffic conditions. The suitability of UTW... Topics: Deflection, Hot Mix Asphalt, Stress, Ultra Thin Whitetopping
The paper review various research works carried out through design analysis and optimization of various types of shafts .The research contributes to the problem evaluation of a small scale industry working in the area of casting. The research based on shaft failure, shaft optimization and different material using of the shaft of different machine and automobile industries. This could help the industries working in these areas to improve the life and function ability of the unit which would in... Topics: Shaft, optimization, design, composite material, deflection, stress, etc.
Ferrocement, a thin element is used in building construction as well as a repair material. Here an experimental investigation on ferrocement performance for repairing of RCC beam is presented. Three set RCC beams of the same dimension (width 4″, thickness 6″ and span 5.5′) are tested up to ultimate load by one point loading system as a simply supported beam. These beams are addressed as BN-1.1, BN-1.2, BN-1.3, BN-2.1, BN-2.2, BN-2.3, BN-3.1, BN-3.2 and BS-3.3 according to their set. After... Topics: Ferrocement, beam, cracking load, ultimate load, repairing, deflection
R&D Report 1974-31 : Laser beam deflection I. Childs In the first part of this report, the design of a prototype laser deflection system is described, together with some of the principles behind the deflection method chosen. The measured performance of the system is quoted and methods for improving this performance outlined. In the second part, a comparison is made between the various methods of laser deflection and some comments made as to the suitability of these methods to broadcasting... Topics: acoustic, deflection, beam, cell, light, input, laser, frequency, deflected, intensity, transit...
From the bitsavers.org collection, a scanned-in computer-related document.tektronix :: 44xx :: service :: 4404 Monitor Theory of Operation Topics: vertical, voltage, horizontal, circuit, figure, deflection, crt, focus, applied, output, dynamic...
Manual for Atari 13 Inch Color XY Display. Service Manual Complete with Schematics and Illustrated Parts Lists. Including Warnings, Specifications, Details of Operation, Repair, Control Adjustments. Atari, Inc. 790 Sycamore Drive, P.O. Box 906, Milpitas, California, 95035. Topics: resistor, display, deflection, Arcade game manual, video game, atari, pcb, yoke, transistor,...
Effect of thermodynamic properties of working medium on choice of optimum parameters, load factor, coefficient of discharge, flow deflection angles, for gas turbine Topics: CONDUCTORS, DISCHARGE COEFFICIENT, FLOW DEFLECTION, GAS TURBINE, LOAD FACTOR, OPTIMIZATION,...
The central, south and southeast portions of the Amazon Basin experience a period of decreased cloud cover and precipitation from June through November. There are likely important effects of seasonal and interannual rainfall variation on forest leaf area index, canopy water stress, productivity and regional carbon cycling in the Amazon. While both ground and spaceborne studies of precipitation continue to improve, there has been almost no progress made in observing forest canopy responses to... Topics: ASTEROIDS, COMETS, DEFLECTION, ASTRONOMICAL INTERFEROMETRY, SENSITIVITY, TURBULENCE, SIGNAL...
A switch structure, adapted for sensing the state-of-charge of a rechargeable cell, includes a contact element which detects cell casing deflection that occurs as a result of an increase in gaseous pressure within the cell when the cell is returned to its fully charged state during a recharging operation. Topics: NASA Technical Reports Server (NTRS), DEFLECTION, DETECTION, GAS PRESSURE, SWITCHES, PATENTS,...
byColozza, Anthony J.; Scheiman, David A.; Brinker, David J
Unmanned Aerial Vehicles (UAV) are being proposed for many applications for many applications including surveillance, mapping and atmospheric studies. These applications require a lightweight, low speed, medium to long duration aircraft. Due to the weight, speed, and altitude constraints imposed on such an aircraft, solar array generated electric power can be a viable alternative to air-breathing engines for certain missions. Development of such an aircraft is currently being funded under the... Topics: CIRCULAR ORBITS, TRANSFER ORBITS, ATMOSPHERIC ENTRY, FLIGHT PATHS, ACCURACY, MISALIGNMENT, MISS...
A framework for designing control systems directly from substructure models and uncertainties is proposed. The technique is based on combining a set of substructure robust control problems by an interface stiffness matrix which appears as a constant gain feedback. Variations of uncertainties in the interface stiffness are treated as a parametric uncertainty. It is shown that multivariable robust control can be applied to generate centralized or decentralized controllers that guarantee... Topics: COMPUTATIONAL FLUID DYNAMICS, FLOW DISTRIBUTION, GRID GENERATION (MATHEMATICS), FLOW DEFLECTION,...
Continuously measure and record deflection of facility during testing. Facility deflections are then subtracted from shroud deflections during data reduction on computer. System is based on tracking light beam by using two-axis photo detector and feeding signals into X and Y servo system. Topics: NASA Technical Reports Server (NTRS), DEFLECTION, LASERS, OPTICAL TRACKING, PHOTOMETERS, TEST...